TY JOUR TI IMPROVEMENT OF THE GAS PURIFICATION SYSTEM FOR ARC STEELMAKING FURNACES KW arc furnace KW primary emissions KW secondary emissions KW bag filter KW gas removal system KW dust precipitation KW dust traps KW CFD JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Bilan, O.M. AU Azarov, V.N. AU Logachev, K.I. PY 2026 IS 11 PB Belgorod State Technological University named after V.G. Shukhov